UK/IE
OPERATING INSTRUCTIONS FOR THE USER
HYBRID SYSTEM WITH AIR TO WATER HEAT PUMP
GREENSTAR PLUS HYBRID
6720803687-00.1Wo
FOR COMBINATION WITH WORCESTER APPLIANCES THAT HAVE A CENTRAL HEATING
OUTPUT UP TO 28kW
6 720 803 688 (2012/11)
PREFACE
6 720 803 688 (2012/11)2
PREFACE
PLEASE READ THESE INSTRUCTION CAREFULLY
These instructions are applicable to the Worcester, Bosch Group
appliance model stated on the front cover only.
These instructions apply in the UK/IE only and must be followed except
for any statutory obligation.
After installation, please leave this User Instruction manual and the
Installation, Commissioning and Servicing Instructions with the user.
DEDICATED TO HEATING COMFORT
Thank you for purchasing a Greenstar Plus Hybrid manufactured by
Worcester, Bosch Group. The company prides itself on manufacturing
products to the strictest quality control standards throughout every
stage of production.
Worcester, Bosch Group has led the field in innovative design and
performance for over 50 years. This heritage means all our products are
of exceptional quality and proven reliability.
TABLE OF CONTENTS
1 Key to symbols and safety instructions . . . . . . . . . . . . . . . . . . . 3
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2 Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 About the appliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Designated use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 EU Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Data plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 General information on heat production . . . . . . . . . . . . . 4
2.5 Overview of components . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.5.1 Greenstar plus hybrid manager (internal unit) . . . . . . . . 5
2.5.2 Greenstar plus External unit . . . . . . . . . . . . . . . . . . . . . . . 5
3 Preparing the hybrid system for use . . . . . . . . . . . . . . . . . . . . . 6
3.1 Checking the operating pressure of the heating system 6
3.2 Top up the heating system . . . . . . . . . . . . . . . . . . . . . . . . 6
3.3 Overview of the FW200 programming unit . . . . . . . . . . . 6
4 Starting and stopping the hybrid system . . . . . . . . . . . . . . . . . 7
4.1 Stopping the hybrid system . . . . . . . . . . . . . . . . . . . . . . . 7
4.2 Ensuring frost protection . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.3 Restarting the hybrid system after an interruption in
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.4 Setting up heating mode . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.5 Setting hybrid systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.5.1 Overview of the control modes . . . . . . . . . . . . . . . . . . . . 7
4.5.2 Installer settings: HYBRID MENU . . . . . . . . . . . . . . . . . . . 8
4.5.3 MAIN MENU: Energy:price ratio . . . . . . . . . . . . . . . . . . . . 8
5 Environmental protection/disposal . . . . . . . . . . . . . . . . . . . . . . 9
5.1 Disposing of refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Appliance disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6 Inspection and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6.1 What makes regular maintenance important? . . . . . . . . 9
6.2 Cleaning and care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7 Energy saving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
8 Faults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1 Immediately switch off the hybrid system . . . . . . . . . . . 10
8.2 Fault display on the controller FW 200 . . . . . . . . . . . . . 10
9 Your Guarantee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
10 Appendix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
10.1 Cost weighting of electricity price - gas price . . . . . . . . 11
KEY TO SYMBOLS AND SAFETY INSTRUCTIONS
6 720 803 688 (2012/11) 3
1 KEY TO SYMBOLS AND SAFETY
INSTRUCTIONS
1.1 EXPLANATION OF SYMBOLS
WARNINGS
Keywords at the start of a warning indicate the type and severity of the
ensuing risk if measures to prevent the risk are not taken.
• NOTE indicates that material losses may occur.
• CAUTION indicates that minor to medium injury may occur.
IMPORTANT INFORMATION
ADDITIONAL SYMBOLS
1.2 SAFETY INSTRUCTIONS
PRODUCT SAFETY
The hybrid system has been designed and built in accordance with
currently recognised standards and safety requirements. Nevertheless,
incorrect use can result in injury and material losses.
Use this product:
• only as intended
• only in perfect technical condition
• with awareness of safety concerns and hazards.
TRAINING
Your installer will make you thoroughly familiar with the function of this
hybrid system, its safe and correct operation as well as correct and
environmentally responsible heating.
▶ Complete the commissioning and handover report together with the
installer.
▶ Let the installer hand over to you the technical documentation and all
accessories for the hybrid system.
WHAT TO DO IF REFRIGERANT LEAKS
The air to water heat pump is filled with R410A refrigerant. If refrigerant
leaks and touches skin, it can cause severe frost burns.
▶ In case of a refrigerant leak, never touch any part of the air to water
heat pump.
▶ Avoid skin or eye contact with refrigerant.
▶ Seek medical attention if you get refrigerant on your skin or in your
eyes.
DANGER POSED BY EXPLOSIVE AND EASILY FLAMMABLE
MATERIALS
▶ Never use or store easily flammable materials (paper, thinners, paints
etc.) near the appliances.
DAMAGE THROUGH OPERATOR ERROR
Operator errors can result in injury and/or material losses.
▶ Ensure that children never operate this appliance unsupervised or
play with it.
▶ Ensure that only individuals who can operate this appliance correctly
have access to it.
SITING AND CONVERSION
▶ Only have the appliance installed by a competent person.
Modification for any other use is forbidden.
▶ Never close the outlets of any safety valves.
COMMISSIONING
▶ The hybrid system and the components may only be commissioned by
a competent person.
MAINTENANCE AND TROUBLESHOOTING
▶ The appliances must be maintained on a annual basis by a competent
person. Failure to do so may invalidate your warranty.
▶ Use only original Worcester spare parts and accessories. Losses
caused by the use of parts not supplied by Worcester are excluded
from the Worcester warranty.
2 ABOUT THE APPLIANCE
2.1 DESIGNATED USE
The appliance may only be installed in a sealed unvented hot water
central heating systems to EN 12828. Any other use is considered
improper Any damage that may result is excluded from liability. The
commercial and industrial use of the appliance for generating process
heat is not permitted.
• Information regarding permissible operating conditions can be found
in the relevant chapters of the installation and maintenance
instructions for contractors.
• The following floor standing gas condensing boilers up to 28 kW can
be used in the hybrid system:
– Greenstar 29, 34, 38 & 42 CDi Classic Combi
– Greenstar 25 & 30Si
– Greenstar Highflow 440CDi & 550CDi
– Greenstar 28, 32 & 36CDi Compact
– Greenstar 30CDi System Classic
– Greenstar 12, 15, 18 & 24i System
• Operate the appliance exclusively with R410A refrigerant.
Correct use includes adherence to maintenance and inspection
intervals.
2.2 EU DECLARATION OF CONFORMITY
The design and operation of this product conforms to the European
Directives and the supplementary national requirements. Its conformity
is demonstrated by the CE designation.
Warnings in this document are framed and identified by
a warning triangle printed against a grey background.
Important information where there is no risk to people or
property is indicated with the adjacent symbol. It is
bordered by lines above and below the text.
Symbol Explanation
1. A number step in an action sequence
▶ Action step
Cross-reference to other parts of this document or to
other documents
A reference number to identify or refer to a part or
item
• List/list entry
– List/list entry (second level)
Table 1
1
ABOUT THE APPLIANCE
6 720 803 688 (2012/11)4
2.3 DATA PLATE
On the data plate you will find details of the part number, appliance
output and approval data.
On the hybrid manager, a data plate is affixed to the right hand side
panel of the casing.
Fig. 1 Data plate on the hybrid manager (internal unit)
[1] Unit data
[2] Serial number
On the external unit, the data plate is located under the service cover.
2.4 GENERAL INFORMATION ON HEAT PRODUCTION
Buildings can be heated efficiently with condensing boilers and air to
water heat pumps. However, these two technologies have different
performance characteristics.
Condensing boilers as well as air to water heat pumps use energy gained
from fossil fuels. In condensing boilers, gas is burnt directly inside the
appliance.
Air to water heat pumps use electrical energy which has been obtained
from a number of different sources. This includes fossil-fuel-burning
power stations. These are typically around 40 % efficient in converting
fuel to useful electricity. Although an air to water heat pump is far more
efficient than a condensing boiler at converting its input energy
(electricity) into heat, the electricity used has a larger amount of fossil-
fuel consumption attached. This consumption of fossil fuels is referred
to as the primary energy factor (PEF).
The fan draws ambient air via the evaporator of the air to water heat
pump. This extracts heat from the ambient air. The compressor
mechanically increases the temperature and transfers it to the water
circuit.
The PEF of electricity is generally 2.3, the PEF of oil and gas is 1.1, the
PEF of mixed electric power 2.6. The coefficient of performance (COP)
of an air to water heat pump is, subject to outside temperature and water
flow temperature, between 2 and 5.5.
Depending on the current situation and heat demand, either the
condensing boiler or the air to water heat pump may offer a more
favourable energy-to-cost ratio.
The hybrid package integrates both technologies in one system and
thereby offers the opportunity to use either heat source optimally at any
time. Users can decide for themselves whether the emphasis should be
on primary energy consumption and/or whether costs take priority,
alternatively, a combination of primary energy and costs can be used.
GENERAL FUNCTIONS
The hybrid control module determines the proportion of the total energy
expenditure that will be covered by either the condensing boiler or the
external unit, thereby optimizing the efficiency of the heating system.
After flowing through the hybrid manager, the heating water returns
either directly to the heating system or first through the condensing
boiler and then onwards to the heating system.
A high efficiency (HE) pump integrated into the hybrid manager provides
the heating water circulation inside the hybrid manager. Only the HE
pump inside the hybrid manager runs as long as the air to water heat
pump operates on its own.
The pump inside the condensing boiler and the HE pump inside the
hybrid manager run concurrently if either the condensing boiler on its
own or condensing boiler and air to water heat pump operate
simultaneously.
A filter with sieve inside the hybrid manager protects the heat exchanger
and the heating system from contamination through small particles.
A flow switch with magnetic toggle switch ensures that the external unit
only operates as long as the water flow rate is adequate for the Hybrid
Manager.
The heat transfer between the refrigerant (R410A) and the heating
water takes place inside the heat exchanger of the Hybrid Manager.
AUTOMATIC DEFROST FUNCTION
Ice forms on the external unit at low temperatures ( 7°C). In the
temperature range of +7 °C to -9 °C, heat from the heating system water
is used briefly to automatically defrost the external unit.
During defrosting, the boiler remains available for heating the heating
water. The defrost cycle takes approx. 5 minutes.
The service cover may only be removed by a competent
person.
6720803688-01.1Wo
50W
0.43 A
R410A 2.50 kg (30m)
4.15 MPa
2.30 MPa
IPX4D
230V 50Hz
3A
(A2W35) = 3.852kW
(A7W35) = 4.704kW
(A2W35) = 3.14
(A7W35) = 4.42
5570 - XXX - XXXXX - 7716160030
2
1
ABOUT THE APPLIANCE
6 720 803 688 (2012/11) 5
2.5 OVERVIEW OF COMPONENTS
2.5.1 GREENSTAR PLUS HYBRID MANAGER (INTERNAL UNIT)
Fig. 2 Main components of the hybrid manager
[1] Refrigerant lines for the refrigerant (R410A)
[2] Casing
[3] Water pipe connections
2.5.2 GREENSTAR PLUS EXTERNAL UNIT
Fig. 3 Main components and casing of external unit
[4] Top casing panel
[5] Service panel
[6] Front of casing panel
[7] Air grille
[-] Finned heat exchanger (evaporator) at the rear of the external
unit
6720803688-02.1Wo
1
2
3
6720803688-03.1Wo
7
4
5
6
PREPARING THE HYBRID SYSTEM FOR USE
6 720 803 688 (2012/11)6
3 PREPARING THE HYBRID SYSTEM FOR USE
3.1 CHECKING THE OPERATING PRESSURE OF THE
HEATING SYSTEM
▶ Regularly check the operating pressure to ensure that the heating
system remains operational.
3.2 TOP UP THE HEATING SYSTEM
Topping up heating water is different for individual heating systems.
Therefore, ask your installer to advise you accordingly.
The maximum pressure of 3 bar at the highest heating water
temperature must not be exceeded (safety valve in the condensing
boiler opens).
3.3 OVERVIEW OF THE FW200 PROGRAMMING UNIT
The hybrid control module regulates the times the air to water heat pump
and the condensing boiler are in use, subject to the parameters entered
into the FW200.
Fig. 4 FW200 programming unit
Observe the information on the required steps in the
operating instructions of the separate components.
Generally, the operating pressure is 1 to 2 bar. Should a
higher operating pressure be required, refer to your
heating contractor.
The separate operating instructions of the
corresponding condensing boiler includes information
on the steps required.
The hybrid system is regulated by means of the weather-
compensated FW200 programming unit.
9
12
h
15
18
21
24
h
3
6
6 720 613 572-01.1O
3
3
4
1
menu info
1
2
3
5
6
7
8
4
Keyboards
1 Turning the selector in + direction: Selects menu/
information above or increases setting value
Turning the selector in – direction: Selects menu/
information below or decreases setting value
Pushing the selector : Opens menu
or confirms setting/value
Switches heating circuit
2 Mode selector for heating circuits:
Automatic mode
Continuous Comfort
Continuous Economy
Continuous Frost
3 button:
In order to bring forwards the next switching time and associated
operating mode
= Comfort
= Economy
= Frost
for the heating circuit to the current time.
4 button: In order to activate DHW heating immediately. The
DHW cylinder is heated to the desired temperature for 60 minutes
or, with combination boilers, comfort mode is activated for 30
minutes. If the ECO button is active for combi boilers, the
button has no function.
5 button: Open/close menu
Open INSTALLER SETTINGS: Hold down for approx. 3 seconds
6 button: Display values
7 Key : Delete/reset value
8 Key : Return to next menu level up
To make the further description easier
• controls and operating modes are sometimes only
depicted with symbols, e.g. or .
• menu levels are separated by the > symbol, e.g.
Holiday>Start.
advance
advance
advance
menu
info
STARTING AND STOPPING THE HYBRID SYSTEM
6 720 803 688 (2012/11) 7
4 STARTING AND STOPPING THE HYBRID
SYSTEM
The specified sequences and delays must always be observed when
starting and stopping the hybrid system. Otherwise the hybrid system
components could suffer severe damage.
4.1 STOPPING THE HYBRID SYSTEM
Switching off the hybrid system:
▶ Reset any current heat demands using the programming unit.
▶ After stopping the operation, wait at least 5 minutes. Only then isolate
the power supply to the hybrid manager and the external unit.
Otherwise, water leakage or breakdown may result.
4.2 ENSURING FROST PROTECTION
4.3 RESTARTING THE HYBRID SYSTEM AFTER AN
INTERRUPTION IN OPERATION
4.4 SETTING UP HEATING MODE
Make the following adjustments on the condensing boiler or on the
FW200 programming unit:
• Maximum flow temperature
With underfloor heating systems observe the maximum permissible flow
temperature. Older underfloor heating systems generally require higher
flow temperatures than more modern systems.
• Maximum DHW temperature
• Setback mode
•Summer mode
• Frost protection
4.5 SETTING HYBRID SYSTEMS
4.5.1 OVERVIEW OF THE CONTROL MODES
Symbols
Current room temperature
Flashing segment:
Current time (09:30 to 09:45)
Solid segments:
Time set for operating mode = Comfort today (1
segment = 15 min)
Empty segments:
Time set for operating mode = Economy today (1
segment = 15 min)
No segments:
Time set for operating mode = Frost today (1 segment =
15 min)
Operating mode Comfort for heating circuit
Operating mode Economy for heating circuit
Operating mode Frost for heating circuit
Automatic mode for heating circuit
Holiday mode
Burner operation on display for heating circuit
+ Scroll menu/info text up
or increase value
– Scroll menu/info text down
or decrease value
OK Open menu, confirm setting/value or switch heating circuit
Return to next menu up
Delete/reset value
Bring forwards the next switching time and the associated
operating mode
= Comfort
= Economy
= Frost
for the heating circuit to now.
Activate DHW heating immediately. The DHW cylinder is
heated to the required temperature for 60 minutes or, with
combi boilers, comfort mode is activated for 30 minutes. If
the ECO button is active for combi boilers, the
button has no function.
The hybrid control module regulates the times the air to
water heat pump and the condensing boiler are in use,
subject to the parameters entered into the FW200
programming unit.
▶ Never isolate the power supply to the hybrid manager
and the external unit during standard operation.
9
21
15
3
advance
advance
advance
NOTICE: Frost damage
When the heating system is switched off, it can freeze up
if there is a frost.
▶ In the case of a risk of frost, have the DHW circuit
drained by an a competent person or mix antifreeze
that is approved for use with the respective
condensing boiler into the heating water.
Whether antifreeze may be used and which type is
permissible depends on the installed condensing boiler.
▶ Observe the details in the condensing boiler
installation instructions.
NOTICE: Damage to the external unit from low operating
temperature.
When restoring the power supply following an
interruption of operation.
The Power supply to the external unit must be ‘live’ for at
least 12 hours before starting operation. This is to
ensure that the compressor is warmed up sufficiently to
avoid any liquid refrigerant from entering the
compressor. This is particularly important during colder
periods.
The 12 hour period also compensates for any unsettling
of the lubricating oil within the compressor which may
have occurred during transportation.
If this 12 hour time period cannot be met damage to the
outdoor unit may result.
▶ If the appliances fail to start contact your installer.
The separate operating instructions of the condensing
boiler or the FW200 programming unit include
information on the steps required.
These parameters can be set either via the FW 200
weather-compensated controller or via the hybrid
control module. These values are transferred and
overwritten respectively. The following section will
describe how to make the settings using the FW 200
weather-compensated controller.
STARTING AND STOPPING THE HYBRID SYSTEM
6 720 803 688 (2012/11)8
You can check which of the following control modes the contractor has
set for you in the Info menu ( technical documentation FW200) on the
FW200 weather-compensated controller.
• CO2-optimised
With CO
2
-optimised mode, the system control decides when
operating the heat pump or boiler results in the greatest CO
2
reduction.
• Cost-optimised
With the cost-optimised mode, the system control decides on the
basis of current energy prices. Rising gas prices result in longer
operation of the heat pump, whilst rising electricity prices result in
longer operation of the boiler.
• Changeover temperature
With outside temperature-dependent mode, the boiler starts
operating from a defined outside temperature.
• CO2:cost mix
Mixed mode comprising environmental factors and costs.
Environmental aspects and financial aspects are both taken into
account.
4.5.2 INSTALLER SETTINGS: HYBRID MENU
The following parameters must be set by the installer:
Control modes for hybrid systems:
• CO2-optimised
• Cost-optimised
• Changeover temperature
• CO2:cost mix
4.5.3 MAIN MENU: ENERGY:PRICE RATIO
This menu option is only available if the control strategy has been set to
cost-optimised or CO2-cost-Mix at contractor level.
Operation Display
▶Open flap.
The standard display continues to
be shown.
Calling up the main menu:
Press The MAIN MENU is
displayed.
Turn ▶ Highlight the Hybrid
menu option.
Press ▶ Confirm the selected
Hybrid menu option.
The Hybrid menu is
displayed.
Turn ▶ Highlight the
Energy:price ratio menu
option.
Press ▶ Confirm the selected
Energy:price ratio menu
option.
Turn ▶ Set the required value.
Setting range: 0.0 to 19.9
Factory setting: 3.3
(see table 3, page 11)
Press ▶ Call up the next menu up.
-or-
Turn ▶ Highlight the Back menu option.
Press ▶ Confirm the Back menu option.
The next menu up is displayed.
Table 2 Setting the energy price ratio Electricity/fossil fuel
6720803688-04.1Wo
OUTSIDE TEMPERATURE 9 C
15
18
12
h
9
21
24
h
3
6
Room temperature
23.5
09:43
Tuesday
C
menu
6720803688-05.1Wo
MAIN MENU
15
18
12
h
9
21
24
h
3
6
< Back
Holiday
Heating
6720803688-06.1Wo
MAIN MENU
15
18
12
h
9
21
24
h
3
6
Domestic hot water
General settings
Heating
6720803688-07.1Wo
HYBRID SETTINGS
15
18
12
h
9
21
24
h
3
6
Energy :price ratio
3.3
6720803688-08.1Wo
HYBRID SETTINGS
15
18
12
h
9
21
24
h
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6
Energy :price ratio
3.3
ENVIRONMENTAL PROTECTION/DISPOSAL
6 720 803 688 (2012/11) 9
5 ENVIRONMENTAL PROTECTION/DISPOSAL
Environmental protection is one of the fundamental company policies of
the Bosch Group.
Quality of products, efficiency and environmental protection are equally
important objectives for us. Laws and requirements aimed at protecting
the environment are strictly adhered to.
To protect the environment we will, subject to economical aspects, use
the best possible technology and materials.
PACKAGING
We participate in the recycling programmes of the countries in which our
products are sold to ensure optimum recycling.
All of our packaging materials are environmentally compatible and can
be recycled.
5.1 DISPOSING OF REFRIGERANT
The appliance is charged with R410A refrigerant.
R410A is a greenhouse gas. It must not enter the environment.
▶ If you wish to discard refrigerant, please contact your local authorities
and ask for the correct method of disposal.
5.2 APPLIANCE DISPOSAL
Old appliances contain materials that should be recycled.
The appliance is marked with the symbol.
▶ Sort and dispose of packaging materials according to the national
recycling system.
▶ Have an authorised contractor dispose of the appliance and any
accessories according to the local regulations.
▶ Do not dispose of the appliance in the normal refuse (e.g. dust bin).
▶ If the appliances have batteries or rechargeable batteries, dispose of
these separately beforehand according to local regulations.
▶ Dispose of electric and electronic equipment separately according to
local requirements.
6 INSPECTION AND MAINTENANCE
6.1 WHAT MAKES REGULAR MAINTENANCE
IMPORTANT?
Regular service is essential for the following reasons:
• to maintain a high level of efficiency and to operate the hybrid system
economically
• to achieve a high level of operational reliability.
6.2 CLEANING AND CARE
Clean the casing of the hybrid manager and the external unit with a damp
cloth (detergent solution). Never use scouring or aggressive cleaning
agents that would damage the painted surface or plastic components.
7 ENERGY SAVING TIPS
INSPECTION/MAINTENANCE
So that gas consumption and environmental impact can be kept as low
as possible for as long as possible, we recommend that you take out an
inspection and maintenance contract with an authorised contractor
covering an annual inspection and service subject to demand.
HEATING CONTROLS
With modern heating systems designed around a 20 °C heat loss across
the system. The system must be balanced correctly and the radiators
may need upgrading.
The temperature of each room can be set individually (except primary
room with the room thermostat) using the thermostatic radiator valves.
Reducing the setting of the room thermostat by 1°C can reduce fuel
consumption by up to 10%.
For further information, see the relevant installation and operating
instructions of the controller.
THERMOSTATIC VALVES
Fully open the thermostatic radiator valves in order to achieve the
required room temperature. Change the required room temperature at
the programming unit only if the temperature is not achieved after a
prolonged period.
RADIATORS
If a radiator is sited underneath a window, its performance will be
affected if the curtains are allowed to drape over the radiator.
Shelves fitted above or in front of the radiator should also be avoided.
It is advisable to manually adjust all thermostatic radiator valves every 2
- 3 months to prevent them sticking. Ensure radiator valves are correctly
set and not damaged.
UNDERFLOOR HEATING SYSTEM
Never set the flow temperature higher than the maximum flow
temperature recommended by the manufacturer.
ROOF INSULATION
Around 30% of the heat loss from a property is through the roof. Replace
any old insulation with new insulation, preferably of around 200mm
thickness or more.
CAUTION: Incorrect disposal is an environmental
hazard!
Escaping refrigerant damages the environment.
▶ Refrigerant may be disposed of by qualified
contractors only.
Appliances with this symbol may not be disposed of in
the normal refuse (e.g. dust bin) at the end of their
service life.
NOTICE: Material losses due to a lack of or incorrect
cleaning and maintenance.
▶ Have your hybrid system inspected, serviced and
cleaned annually by an authorised contractor.
▶ We recommend you enter a contract covering an
annual inspection and service subject to demand.
FAULTS
6 720 803 688 (2012/11)10
WINDOW FRAMES
Single glazed windows, particularly those with steel frames, can lose a
great deal of heat. Consideration should be given to replacement with
PVCu or wooden framed double glazed units.
DRAUGHTS
Try to ensure that draughts around doors, windows, letter boxes and
keyholes etc. are reduced by using a suitable draught excluder.
CURTAINS
Lined curtains, or heavier full length curtains can provide excellent
insulation. However, always ensure that the curtains do not drape over
radiators.
8FAULTS
8.1 IMMEDIATELY SWITCH OFF THE HYBRID SYSTEM
Should one of the following situations occur, disconnect the power
supply to the hybrid manager and the external unit and contact your
installer.
The hybrid system must not continue to be operated under the following
circumstances:
• One fuse/MCB of the hybrid system responds/blows with excessive
frequency.
• Splashed water or flash water has penetrated the hybrid manager.
• Water drips from the hybrid manager.
• The hybrid system makes unusual noises during operation.
8.2 FAULT DISPLAY ON THE CONTROLLER FW 200
A malfunction in your heating system will be indicated on the controller
display.
The cause may be a malfunction of the boiler, controller or hybrid
manager / heat pump.
If the boiler is the cause of the failure please refer to the relevant boiler
manual.
If the controller is the cause of the failure please refer to the FW200
manual.
If the hybrid manager / heat pump is the cause of the failure please
contact your authorized dealer or customer service centre.
9 YOUR GUARANTEE
This appliance has a guarantee against faulty materials or workmanship
for a period of two years from the date of installation subject to the
following terms and conditions:
• During the period of this guarantee any components of the appliance
which are proven to be faulty or defective in manufacture will be
exchanged or repaired free of charge by Bosch Thermotechnology
Ltd.
• The householder may be asked to prove the date of installation, that
the boiler was correctly commissioned and, where appropriate, the
first year's service has been carried out to the satisfaction of Bosch
Thermotechnology Ltd., when requested.
These should be documented as a part of the Benchmark Checklist.
• The appliance has been used only for the normal domestic purposes
for which it was designed.
This guarantee does not affect your statutory rights.
GUARANTEE REGISTRATION
Your Greenstar appliance carries a two year guarantee against faulty
material or manufacturer subject to Terms and Conditions.
To read the full Terms & Conditions please visit us on-line at
www.worcester-bosch.co.uk/guarantee. The Guarantee Registration
form is available on this same page and can be completed and submitted
electronically.
Alternatively, please telephone one of our Guarantee Registration
advisors on 0844 892 2552.
Your statutory rights are not affected by the manufacturers guarantee.
FOR YOUR OWN RECORD
Please ensure that the Benchmark Checklist has been completed by
your installer or service engineer.
When requesting a customer service visit, it is useful to provide detailed
information about your appliance.
You will find these details on the data plate.
Product: ......................................................................................
Serial number: ..............................................................................
Date of manufacture: .....................................................................
Commissioning date: .....................................................................
System installer: ...........................................................................
WARNING: Air vents
▶ Do not block or seal any air vents that are installed to
ensure that the central heating boiler operates safely.
APPENDIX
6 720 803 688 (2012/11) 11
10 APPENDIX
10.1 COST WEIGHTING OF ELECTRICITY PRICE - GAS PRICE
GLOSSARY
OPERATING PRESSURE
The operating pressure is the pressure in the heating system.
PROGRAMMING UNIT
The programming unit ensures the automatic control of the flow
temperature subject to outside temperature (in case of weather-
compensated controllers) in conjunction with a time programme.
INSTANTANEOUS WATER HEATER PRINCIPLE
The water is heated as it flows through the appliance. The maximum
draw-off rate is quickly available, i.e. without long waiting times or
interruptions for the heat-up process.
HEATING RETURN
The heating return is the pipework that returns the heating water at a
lower temperature from the radiators/underfloor heating system etc. to
the heat source.
HEATING WATER
Heating water is the water that circulates in the heating system.
COEFFICIENT OF PERFORMANCE
The coefficient of performance , (COP), is the actual or calculated
identifier for air to water heat pumps under specified operating
conditions, similar to the standardised fuel consumption for vehicles.
The coefficient of performance describes the ratio between the
available heating energy and the power drawn by the compressor.
PRIMARY ENERGY FACTOR (PEF)
The consumption of fossil fuels is referred to as the primary energy
factor (PEF).
THERMOSTATIC VALVE
Thermostatic valves are mechanical temperature controllers that
enables a lower or higher heating water flow rate subject to ambient
temperature in order to maintain a constant temperature.
FLOW TEMPERATURE
Flow temperature is the temperature with which the heated heating
water flows from the appliance to the radiators, underfloor heating
circuits, etc.
EFFICIENCY
Efficiency describes the ratio between available output and energy
input. Under ideal circumstances, the efficiency is 1. Technical
processes always involve some losses, hence the efficiency of technical
equipment is always below 1.
Air to water heat pumps draw a large proportion of the energy [they
deliver] from the environment. This portion of energy is not described as
supplied energy, as it is free of charge. Were the efficiency under these
conditions to be calculated, it would be 1. As this would not be correct,
the coefficient of performance (COP) was introduced for air to water
heat pumps in order to describe the ratio between available or useful
energy to that which has been expended (in this case purely the working
energy). The coefficient of performance for air to water heat pumps lies
between 3 and 6.
Electricity price [P/kWh]
10.0-10.9
11.0-11.9
12.0-12.9
13.0-13.9
14.0-14.9
15.0-15.9
16.0-16.9
17.0-17.9
18.0-18.9
19.0-19.9
20.0-20.9
21.0-21.9
22.0-22.9
23.0-23.9
24.0-24.9
25.0-25.9
26.0-26.9
27.0-27.9
28.0-28.9
29.0-29.9
30.0-30.9
Gas price [P/kWh]
3.0-3.9 2.8 3.0 3.3 3.5 3.8 4.1 4.3 4.6 4.9 5.1 5.4 5.7 5.9 6.2 6.4 6.7 7.7 7.2 7.5 7.8 8.8
4.0-4.9 2.1 2.3 2.5 2.7 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4 4.6 4.8 5.0 5.2 5.4 5.6 5.8 6.0 6.2
5.0-5.9 1.7 1.9 2.1 2.2 2.4 2.6 2.7 2.9 3.1 3.2 3.4 3.6 3.7 3.9 4.1 4.2 4.4 4.6 4.7 4.9 5.1
6.0-6.9 1.5 1.6 1.8 1.9 2.0 2.2 2.3 2.5 2.6 2.7 2.9 3.0 3.2 3.3 3.4 3.6 3.7 3.9 4.0 4.2 4.3
7.0-7.9 1.3 1.4 1.5 1.6 1.8 1.9 2.0 2.1 2.3 2.4 2.5 2.6 2.7 2.9 3.0 3.1 3.2 3.3 3.5 3.6 3.7
8.0-8.9 1.1 1.2 1.3 1.4 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 3.0 3.1 3.2 3.3
9.0-9.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 2.2 2.3 2.4 2.4 2.5 2.6 2.7 2.8 2.9
10.0-10.9 0.9 0.9 1.1 1.2 1.3 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.6
11.0-11.9 0.8 0.9 1.0 1.1 1.1 1.2 1.3 1.4 1.5 1.5 1.6 1.7 1.8 1.9 1.9 2.0 2.1 2.2 2.3 2.3 2.4
12.0-12.9 0.8 0.8 0.9 1.0 1.1 1.1 1.2 1.3 1.3 1.4 1.3 1.6 1.6 1.7 1.8 1.9 1.9 2.0 2.1 2.2 2.2
13.0-13.9 0.7 0.8 0.8 0.9 1.0 1.0 1.1 1.2 1.2 1.3 1.2 1.4 1.5 1.6 1.7 1.7 1.8 1.9 1.9 2.0 2.1
14.0-14.9 0.7 0.7 0.8 0.8 0.9 1.0 1.0 1.1 1.2 1.2 1.2 1.3 1.4 1.5 1.5 1.6 1.7 1.7 1.8 1.9 1.9
15.0-15.9 0.6 0.7 0.7 0.8 0.9 0.9 1, 1.0 1.1 1.1 1.1 1.3 1.3 1.4 1.4 1.5 1.6 1.6 1.7 1.7 1.8
16.0-16.9 0.6 0.6 0.7 0.7 0.8 0.9 0.9 1.0 1.0 1.1 1.0 1.2 1.2 1.3 1.4 1.4 1.5 1.5 1.6 1.6 1.7
Table 3 Call-up example: cost weighting of electricity and gas prices
Worcester, Bosch Group
Cotswold Way, Warndon, Worcester WR4 9SW.
Tel. 0844 892 9900
Worcester, Bosch Group is a brand name of Bosch Thermotechnology Ltd.
worcester-bosch.co.uk
6 720 803 688 (2012/11)
WORCESTER, BOSCH GROUP:
TECHNICAL SUPPORT: 0844 892 3366
APPOINTMENTS: 0844 892 3000
SPARES: 01905 752571
LITERATURE: 0844 892 9800
TRAINING: 01905 752526
SALES: 01905 752640
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